CN104876864B - 一种乐伐替尼的制备方法 - Google Patents
一种乐伐替尼的制备方法 Download PDFInfo
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- CN104876864B CN104876864B CN201510300819.4A CN201510300819A CN104876864B CN 104876864 B CN104876864 B CN 104876864B CN 201510300819 A CN201510300819 A CN 201510300819A CN 104876864 B CN104876864 B CN 104876864B
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- Prior art keywords
- methoxy quinoline
- amino
- reactant liquor
- buddhist nun
- synthesis
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- 238000003756 stirring Methods 0.000 claims description 23
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- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
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- Chemical & Material Sciences (AREA)
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Abstract
本发明以4‑氨基‑3‑氯苯酚为起始原料,先氨基保护,再与4‑氯‑7‑甲氧基喹啉‑6‑酰胺进行对接,脱氨基保护基,与环丙胺反应,制备得到乐伐替尼,此制备方法简便易行、收率高,质量好,便于工业化生产。
Description
技术领域
本发明涉及药物领域,具体涉及一种乐伐替尼的制备方法。
背景技术
乐伐替尼Lenvatinib,化学名为4-[3-氯-4-(环丙胺基羰基)氨基苯氧基]-7-甲氧基-6-喹啉甲酰胺,是日本卫材公司开发的一种口服有效的多激酶抑制剂,主要作用于c-Kit、Ret和VEGFR-2等多个靶点,用于治疗神经胶质瘤、甲状腺瘤、肾癌、肝癌和卵巢癌等实体瘤。2013年2月获得美国FDA孤儿药认定,临床用于治疗滤泡状、髓样、未分化的转移性或局部晚期甲状腺乳头状癌。
EP1683785A1、EP1698623A1、EP1797881A1、US7683172A1等文献介绍了一种乐伐替尼的合成方法,其合成路线如下:
此路线的不足在于采用了具有一定毒性的氯甲酸苯酯作为原料,在后续反应中产生了毒性较大的苯酚,再者,没有进行氨基保护时,没有对羟基进行保护,会产生一定的杂质。
技术方案
针对上述文献不足之处,本发明对其合成路线进行了重新设计,以4-氨基-3-氯苯酚为起始原料,先对氨基进行Boc保护,与4-氯-7-甲氧基喹啉-6-酰胺进行对接,脱氨基Boc保护基,在CDI的作用下与环丙胺反应,制备得到乐伐替尼,此制备方法简便易行、原料简便易得、能耗低、收率高,质量好,便于工业化生产,合成简要路线如下:
本发明还合成得到了乐伐替尼的马来酸盐。
(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)的合成:
向二氯甲烷中加入4-氨基-3-氯苯酚(A)、二碳酸二叔丁酯以及三乙胺,室温搅拌3-8小时。反应液用水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到标题化合物(B)。
4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D)的合成:
向二甲基亚砜中加入7-甲氧基-4-氯喹啉-6-羧酰胺(C)、(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)以及碳酸铯,在60-98℃下加热搅拌8-12小时,将反应液降至室温,把反应液倾倒入水中,搅拌20-60分钟,过滤,干燥得到标题化合物(D)。
4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)的合成:
向甲醇中加入4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D),适量的盐酸甲醇溶液,室温搅拌3-8小时。向反应液中加入乙醚,搅拌20-60分钟,过滤,干燥得到标题化合物(E)。
乐伐替尼(F)的合成:
向二氯甲烷中加入4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)、环丙胺、N,N-羰基二咪唑以及三乙胺,40-60℃加热回流搅拌3-12小时。反应液用水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶标题化合物(F)。
乐伐替尼(F)的合成:
向二氯甲烷中加入4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)、环丙胺、N,N-羰基二咪唑以及三乙胺,CO2保护,40-60℃加热回流搅拌3-12小时。反应液用水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶标题化合物(F)。
乐伐替尼的马来酸盐的合成
乐伐替尼加入马来酸和乙醇的混合溶液中,于30-50℃下使其溶解。确认溶解后,再经1-4小时滴入醋酸乙酯。醋酸乙酯的滴加结束后,将反应液在30-50℃下搅拌20-60分钟,然后在室温下搅拌3-10小时。过滤析出的结晶,在30-80℃下干燥,得到乐伐替尼的马来酸盐的结晶。
本发明合成工艺的优化:
(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)的合成的优选
向1000ml二氯甲烷中加入100g 4-氨基-3-氯苯酚(A)183.0g二碳酸二叔丁酯以及211.0g三乙胺,室温搅拌4小时。反应液用300ml水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到157.0g标题化合物(B)。(收率为92.5%)。
向1000ml二氯甲烷中加入100g 4-氨基-3-氯苯酚(A)183.0g二碳酸二叔丁酯以及211.0g二乙胺,室温搅拌4小时。反应液用300m]水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到75.0g标题化合物(B)。(收率为41.2%)。
4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D)的合成的优选
向1000ml二甲基亚砜中加入87.0g 7-甲氧基-4-氯喹啉-6-羧酰胺(C)、100.0g(2-氯-4- 羟基-苯基)氨基甲酸叔丁酯(B)以及334.0g碳酸铯,在90℃下加热搅拌8小时。将反应液降至室温,把反应液倾倒入3000ml水中,搅拌30分钟,过滤,干燥得到154.0g标题化合物(D)。(收率为93.9%)。
向1000ml二甲基亚砜中加入87.0g 7-甲氧基-4-氯喹啉-6-羧酰胺(C)、100.0g(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)以及334.0g碳酸铯,在100℃下加热搅拌8小时。将反应液降至室温,把反应液倾倒入3000ml水中,搅拌30分钟,过滤,干燥得到122.0g标题化合物(D)。(收率为84.5%)。
4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)的合成的优选
向300ml甲醇中加入100.0g 4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D)以500ml 2N的盐酸甲醇溶液,室温搅拌4小时。向反应液中加入1500ml乙醚,搅拌30分钟,过滤,干燥得到78.0g标题化合物(E)。(收率为91.1%)。
向300ml甲醇中加入100.0g 4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D)以500ml 4N的盐酸甲醇溶液,室温搅拌4小时。向反应液中加入1500ml乙醚,搅拌30分钟,过滤,干燥得到76.0g标题化合物(E)。(收率为87.2%)。
乐伐替尼(F)的合成的优选
向600ml二氯甲烷中加入60.0g 4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)、10.8g环丙胺、51.2g N,N-羰基二咪唑以及47.8g三乙胺,50℃加热回流搅拌6小时。反应液用900ml水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶59.4g标题化合物(F)。乐伐替尼(F)的合成
向600ml二氯甲烷中加入60.0g 4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)、10.8g环丙胺、51.2g N,N-羰基二咪唑以及47.8g三乙胺,CO2保护,50℃加热回流搅拌6小时。反应液用900ml水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶62.1g标题化合物(F)。
乐伐替尼的马来酸盐的合成的优选
乐伐替尼(150mg)加入马来酸(20mg)和乙醇(2mL)的混合溶液中,于40℃下使其溶解。确认溶解后,再经2小时滴入醋酸乙酯(1.8mL)。醋酸乙酯的滴加结束后,将反应液在40℃下搅拌30分钟,然后在室温下搅拌5小时。过滤析出的结晶,在60℃下干燥,得到乐伐替尼的马来酸盐的结晶(176mg)。
乐伐替尼(150mg)加入马来酸(20mg)和甲醇(2mL)的混合溶液中,于40℃下使其溶解。确认溶解后,再经2小时滴入醋酸乙酯(1.8mL)。醋酸乙酯的滴加结束后,将反应液在40℃下搅拌30分钟,然后在室温下搅拌5小时。过滤析出的结晶,在60℃下干燥,得到乐伐替尼的马来酸盐的结晶(123mg)。
将本发明的结晶本身或剂型制成药品,
将本发明的结晶的剂型制成药品,将结晶与适当的辅料添加剂混合,制成制剂。
本发明的优选制剂是:片剂、散剂、颗粒剂、胶囊剂、糖浆剂、含片剂、吸入剂等口服制剂;栓剂、软膏剂、眼膏剂、透皮剂、滴眼剂、滴鼻剂、滴耳剂、巴布剂、洗剂等外用制剂或注射剂。
优选的辅料是:赋形剂、粘合剂、润滑剂、崩解剂、着色剂、矫味矫嗅剂、乳化剂、表面活性剂、助溶剂、混悬化剂、等渗剂、缓冲剂、防腐剂、抗氧化剂、稳定剂、吸收促进剂等。
优选的赋形剂是:乳糖、白糖、葡萄糖、玉米淀粉、甘露醇、山梨糖醇、淀粉、α淀粉、糊精、结晶纤维素、轻质硅酸酐、硅酸铝、硅酸钙、硅酸铝酸镁、磷酸氢钙等。
优选的粘合剂是:聚乙烯醇、甲基纤维素、乙基纤维素、阿拉伯胶、黄耆胶、明胶、虫胶、羟丙甲基纤维素、羟丙基纤维素、羧甲基纤维素钠、聚乙烯基吡咯烷酮、聚乙二醇等。
优选的润滑剂是:硬脂酸镁、硬脂酸钙、富马酸十八酯钠、滑石、聚乙二醇、胶态二氧化硅等。
优选的崩解剂是:结晶纤维素、琼脂、明胶、碳酸钙、碳酸氢钠、柠檬酸钙、糊精、果胶、低取代羟丙基纤维素、羧甲基纤维素、羧甲基纤维素钙、交联羧甲基纤维素钠、羧甲基淀粉、羧甲基淀粉钠等。
优选的着色剂是:三氧化二铁、黄色三氧化二铁、胭脂红、焦糖、β-胡萝卜素、氧化钛、滑石、磷酸核黄素钠等。
优选的矫味剂是:可可粉、薄荷醇、薄荷油、冰片、桂皮粉等。
优选的乳化剂或表面活性剂是:十八烷基三乙醇胺、十二烷基硫酸钠、十二烷基氨基丙酸、卵磷脂、甘油单硬脂酸酯、蔗糖脂肪酸酯、甘油脂肪酸酯等。
优选的助溶剂是:聚乙二醇、丙二醇、安息香酸苄酯、乙醇、胆固醇、三乙醇胺、碳酸钠、柠檬酸钠、吐温80、烟酰胺等。
优选的混悬剂是:聚乙烯醇、聚乙烯基吡咯烷酮、甲基纤维素、羟甲基纤维素、羟乙基纤维素、羟丙基纤维素等亲水性高分子。
优选的等渗剂是:葡萄糖、氯化钠、甘露醇、山梨糖醇等。
优选的缓冲剂是:磷酸盐、醋酸盐、碳酸盐、柠檬酸盐等缓冲液。
优选的防腐剂是:对羟基苯甲酸甲酯、对羟基苯甲酸丙酯、氯丁醇、苄醇、苯乙醇、脱氢乙酸、山梨酸等。
优选的抗氧化剂是:亚硫酸盐、抗坏血酸、α-生育酚等。
本发明的优选片剂的组分是:10-100g乐伐替尼的结晶或乐伐替尼马来酸盐的结晶,2-10g二氧化硅、10-100g磷酸二氢钾、2-50g低取代羟丙基纤维素、2-50g羟乙基纤维素、100-300g乳糖。
本发明的优选片剂是:10-100g乐伐替尼的结晶或乐伐替尼马来酸盐的结晶,2-10g二氧化硅、10-100g磷酸二氢钾、2-50g低取代羟丙基纤维素、2-50g羟乙基纤维素混合,然后,添加适量的无水乙醇,制粒;将该颗粒与100-300g乳糖一起混合后,利用压片机压片,得到片剂。
本发明的优选片剂是:50g乐伐替尼的结晶或乐伐替尼马来酸盐的结晶,4g二氧化硅、40g磷酸二氢钾、10g低取代羟丙基纤维素、3g羟乙基纤维素混合,然后,添加适量的无水乙醇,制粒;将该颗粒与143g乳糖一起混合后,利用压片机压片,得到片剂。
本发明的使用量依据症状、年龄、给药方式进行选择,通常成人每日给药10μg~10g,分1次或数次给药。
本发明作为血管新生抑制剂,能够作为血管新生抑制剂、抗肿瘤剂、血管瘤治疗剂、癌转移抑制剂、视网膜血管新生症治疗剂、糖尿病性视网膜症治疗剂、炎症性疾病治疗剂、包括变形性关节炎、风湿性关节炎、干癣或延迟性过敏反应在内的炎症性疾病的治疗剂、动脉粥样硬化性治疗剂。
本发明作为抗肿瘤剂,能够治疗胰腺癌、胃癌、大肠癌、乳癌、前列腺癌、肺癌、肾癌、脑肿瘤、血癌或卵巢癌。
本发明作为c-Kit激酶抑制剂,能够治疗因c-Kit激酶活化的癌(急性骨髓性白血病、肥大细胞性白血病、小细胞肺癌、6IST、睾丸癌、卵巢癌、乳癌、脑肿瘤、神经芽细胞癌或大肠癌)。
本发明作为c-Kit激酶抑制剂,能够治疗过敏、哮喘。
本发明的主要原料的来源包括而不限于市售、按照如下方法制备:
4-氨基-3-氯苯酚:《4-氨基-3-氯苯酚的制备》,《中国医药工业杂志》2013年09期二碳酸二叔丁酯:《二碳酸二叔丁酯双光气法合成工艺》,《上海化工》2006年02期4-氯-7-甲氧基-6-喹啉羧酰胺:CAS RN,417721-36-9
本发明的优点和创新点如下:
1.本发明选用廉价易得的4-氨基-3-氯苯酚为起始原料,先对氨基进行Boc保护,简化了反应步骤,提高了原料利用率和总产率,试剂都较为廉价,副反应少,产率高,中间体直接进行下一步反应,产率高,三废少,适合工业化生产。
2.本发明改进了构建喹啉母环的步骤,用7-甲氧基-4-氯喹啉-6-羧酰胺为反应原料之二,直接引入喹啉母环,减少了副反应的生成,大大提高产率。
3.本发明在第四步在CDI的作用下与环丙胺反应,制备得到乐伐替尼。该过程实际上是一个两步反应,CDI分别和标题化合物(E)、环丙胺上带有活性氢的氨基发生反应,同时失去二个咪唑生成碳酰衍生物,该步骤用“一锅煮”来完成。
4.本发明的结晶的释放效率高
5.本发明的化合物的活性强
6.本发明的产品的杂质少
具体实施例
实施例1:(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)的合成
向1000ml二氯甲烷中加入100g 4-氨基-3-氯苯酚(A)183.0g二碳酸二叔丁酯以及211.0g三乙胺,室温搅拌4小时。反应液用300ml水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到157.0g标题化合物(B)。(收率为92.5%)。
1H-NMR(400MHz,d6-DMSO):1.42(9H,s),5.2(1H,s),6.63(1H,d,J=6.4Hz),6.84(1H,s),7.39(1H,d,J=6.4Hz)。
实施例2:4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D)的合成
向1000ml二甲基亚砜中加入87.0g 7-甲氧基-4-氯喹啉-6-羧酰胺(C)、100.0g(2-氯-4-羟基-苯基)氨基甲酸叔丁酯(B)以及334.0g碳酸铯,在90℃下加热搅拌8小时。将反应液降至室温,把反应液倾倒入3000ml水中,搅拌30分钟,过滤,干燥得到154.0g标题化合物(D)。(收率为93.9%)。
1H-NMR(400MHz,d6-DMSO):1.41(9H,s),3.82(3H,s),6.42(1H,d,J=8.0Hz),
6.61(1H,d,J=6.4Hz),6.80(1H,s),7.36(1H,d,J=6.4Hz),7.58(1H,s),8.62(1H,d,J=8.0Hz),8.73(1H,s)。
实施例3:4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)的合成
向300ml甲醇中加入100.0g 4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯(D),500ml 2N的盐酸甲醇溶液,室温搅拌4小时。向反应液中加入1500ml乙醚,搅拌30分钟,过滤,干燥得到78.0g标题化合物(E)。(收率为91.1%)。1H-NMR(400MHz,d6-DMSO):3.82(3H,s),6.30(1H,d,J=6.4Hz),6.33(1H,d,J=6.4Hz),6.42(1H,d,J=8.0Hz),6.50(1H,s),7.58(1H,s),8.62(1H,d,J=8.0Hz),8.73(1H,s)。
实施例4:乐伐替尼(F)的合成
向600ml二氯甲烷中加入60.0g 4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸 盐(E)、10.8g环丙胺、51.2g N,N-羰基二咪唑以及47.8g三乙胺,50℃加热回流搅拌6小时。反应液用900ml水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶59.4g标题化合物(F)。(收率为88.2%)。
mp 228~230℃。
1H-NMR(400MHz,d6-DMSO):0.42(2H,m),0.65(2H,m),2.56(1H,m),2.58(1H,m),3.98(3H,s),6.50(1H,d,J=6.1Hz),7.20(1H,d,J=3.0Hz),7.24(1H,d,J=2.8Hz),7.49(1H,d,J=2.8Hz),7.49(1H,s),7.70(1H,s),7.82(1H,s),7.98(1H,s),8.07(1H,s),8.24(1H,d,J=9.0Hz),8.66(1H,s),8.64(1H,d,J=6.1Hz)。
IR(KBr)(cm-1):3339,3184,3098,3084,2980,1665,1636,1524,1256,1194,916,851。ESI-MS(m/z):427[M+H]+,449[M+Na]+,425[M-H]-。
HPLC:99.5%。
高效液相仪,色谱工作站
归一化法:色谱柱C18柱;
流动相:水∶乙腈∶乙酸=890∶105∶5(v/v/v)
检测波长252nm;柱温25℃;流速0.6ml/min。
实施例5:乐伐替尼(F)的合成
向600ml二氯甲烷中加入60.0g 4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐(E)、10.8g环丙胺、51.2g N,N-羰基二咪唑以及47.8g三乙胺,CO2保护,50℃加热回流搅拌6小时。反应液用900ml水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶62.1g标题化合物(F)。(收率为93.1%)。
实施例6:乐伐替尼的马来酸盐的合成
乐伐替尼(150mg)加入马来酸(20mg)和乙醇(2mL)的混合溶液中,于40℃下使其溶解。确认溶解后,再经2小时滴入醋酸乙酯(1.8mL)。醋酸乙酯的滴加结束后,将反应液在40℃下搅拌30分钟,然后在室温下搅拌5小时。过滤析出的结晶,在60℃下干燥,得到乐伐替尼的马来酸盐的结晶(176mg)。
马来酸盐1H-NMR光谱(400MHz,DMSO-d6)6(ppm):0.36(2H,m),0.63(2H,m),2.48(1H,m),2.58(1H,m),4.00(3H,s),6.88(1H,s),7.24(1H,s),7.37(1H,d,J=9.0Hz),7.52(1H,s),7.61(1H,s),7.88(1H,s),7.94(1H,s),8.05(1H,s),8.36(1H,d,J=9.0Hz),8.53(1H,s),8.72(1H,s)
实施例7:溶解速度测定试验
根据旋转圆盘法(参见J.H.Wood等,J.Pharm.Soc.,54,1068(1955)),利用下面的条件 测定乐伐替尼游离体的结晶(实施例4中得到的结晶)、乐伐替尼游离体的结晶(实施例5中得到的结晶)、乐伐替尼的马来酸盐的结晶(实施例6中得到的结晶)的溶解速度。溶解速度是基于溶解初期的时间和浓度的关系中保持直线性的范围计算的。
高效液相仪,色谱工作站
归一化法:色谱柱C18柱;
流动相:水∶乙腈∶乙酸=890∶105∶5(v/v/v)
检测波长252nm;柱温25℃;流速0.6ml/min。
进样量:100μL
溶解速度如下所示。
| 溶解速度(μg/分钟/cm2) | |
| 实施例4的结晶 | 0.9 |
| 实施例5的结晶 | 1.1 |
| 实施例6的结晶 | 122 |
与实施例4、5的结晶比较,实施例6的结晶的溶解速度大幅度提高。
实施例8:利用HPLC测定杂质量
向实施例4-6的结晶结晶中加入水和乙醇的混合溶液(4∶1),调制最终浓度为0.1mg/mL的试样溶液。
利用HPLC法,在下面所示的测定条件下对试样溶液进行试验,测定溶出峰面积,利用相对面积法计算杂质总量。(记录大于或等于0.05%的杂质。)
(杂质总量的计算公式)
每种杂质的量(%)=(每种杂质的峰面积)×100/((羧酰胺的峰面积)+(每种杂质的峰面积的总和))
杂质总量(%)=每种杂质的量的总和
(HPLC测定条件)
高效液相仪,色谱工作站
归一化法:色谱柱C18柱;
流动相:水∶乙腈∶乙酸=890∶105∶5(v/v/v)
检测波长252nm;柱温25℃;流速0.6ml/min。
进样量:100μL
溶解速度如下所示。
| 杂质总量(%) | |
| 实施例4的结晶 | 1.08 |
| 实施例5的结晶 | 0.61 |
| 实施例6的结晶 | 0.41 |
实施例9:
50g实施例4的结晶,4g二氧化硅、40g磷酸二氢钾、10g低取代羟丙基纤维素、3g羟乙基纤维素混合。然后,添加适量的无水乙醇,制粒;将该颗粒与143g乳糖一起混合后,利用压片机压片,得到片剂。
实施例10:
50g实施例5的结晶,4g二氧化硅、40g磷酸二氢钾、10g低取代羟丙基纤维素、3g羟乙基纤维素混合。然后,添加适量的无水乙醇,制粒;将该颗粒与143g乳糖一起混合后,利用压片机压片,得到片剂。
实施例11:
50g实施例6的结晶,4g二氧化硅、40g磷酸二氢钾、10g低取代羟丙基纤维素、3g羟乙基纤维素混合。然后,添加适量的无水乙醇,制粒;将该颗粒与143g乳糖一起混合后,利用压片机压片,得到片剂。
实施例12:本发明的抗肿瘤活性
将以1×107/ml的浓度混悬于PBS的VEGF高度表达胰腺癌细胞(KP-1/VEGF)按照0.1ml的容量移植到8周龄的雌性Balb/c(nu/nu)小鼠的右肋腹皮下部。从肿瘤体积达到约100mm3时,连续口服给予被测物质14天。被测物质混悬于0.5%甲基纤维素中,按0.1ml/kg体重剂量给药。末次给药后次日称重、处死动物后剖瘤称重。实验按照对照组(溶剂对照组)1组10只,阳性对照组(5-FU)1组10只,被测物质给药组1组10只进行。按下列公式计算肿瘤抑制率。肿瘤抑制率=(对照组平均瘤重-药物组平均瘤重)/对照组平均瘤重×100%。
| 剂量(g/kg) | 肿瘤抑制率(%) | |
| 溶剂对照组 | — | — |
| 5-FU组 | 0.025 | 62.35 |
| 实施例4的结晶组 | 0.025 | 65.72 |
| 实施例5的结晶组 | 0.025 | 67.31 |
| 实施例6的结晶组 | 0.025 | 68.49 |
Claims (2)
1.一种乐伐替尼的制备方法,其特征在于:
(2-氯-4-羟基-苯基)氨基甲酸叔丁酯的合成
向二氯甲烷中加入4-氨基-3-氯苯酚、二碳酸二叔丁酯以及三乙胺,室温搅拌3-8小时,反应液用水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到(2-氯-4-羟基-苯基)氨基甲酸叔丁酯;
4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯的合成
向二甲基亚砜中加入7-甲氧基-4-氯喹啉-6-羧酰胺、(2-氯-4-羟基-苯基)氨基甲酸叔丁酯以及碳酸铯,在60-98℃下加热搅拌8-12小时,将反应液降至室温,把反应液倾倒入水中,搅拌20-60分钟,过滤,干燥得到4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯;
4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐的合成
向甲醇中加入4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯,适量的盐酸甲醇溶液,室温搅拌3-8小时,向反应液中加入乙醚,搅拌20-60分钟,过滤,干燥得到4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐;
向二氯甲烷中加入4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐、环丙胺、N,N-羰基二咪唑以及三乙胺,40-60℃加热回流搅拌3-12小时,反应液用水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到乐伐替尼。
2.一种乐伐替尼的制备方法,其特征在于:
(2-氯-4-羟基-苯基)氨基甲酸叔丁酯的合成
向1000ml二氯甲烷中加入100g 4-氨基-3-氯苯酚183.0g二碳酸二叔丁酯以及211.0g三乙胺,室温搅拌4小时,反应液用300ml水洗涤,加入适量正己烷打浆,无水硫酸钠干燥,减压蒸出溶剂,得到157.0g(2-氯-4-羟基-苯基)氨基甲酸叔丁酯;
4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯的合成
向1000ml二甲基亚砜中加入87.0g 7-甲氧基-4-氯喹啉-6-羧酰胺、100.0g(2-氯-4-羟基-苯基)氨基甲酸叔丁酯以及334.0g碳酸铯,在90℃下加热搅拌8小时,将反应液降至室温,把反应液倾倒入3000ml水中,搅拌30分钟,过滤,干燥得到154.0g4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯;
4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐的合成
向300ml甲醇中加入100.0g 4-(6-氨基甲酰基-7-甲氧基喹啉-4-氧基)-2-氯苯氨基甲酸叔丁酯,500ml 2N的盐酸甲醇溶液,室温搅拌4小时,向反应液中加入1500ml乙醚,搅拌30分钟,过滤,干燥得到78.0g4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐,
向600ml二氯甲烷中加入60.0g 4-(4-氨基-3-氯苯氧基)-7-甲氧基喹啉-6-甲酰胺盐酸盐、10.8g环丙胺、51.2g N,N-羰基二咪唑以及47.8g三乙胺,50℃加热回流搅拌6小时,反应液用900ml水洗涤,无水硫酸钠干燥,减压蒸出溶剂,甲醇重结晶,得到白色结晶59.4g乐伐替尼。
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